This may sound silly, but knowing how much daylight you have is important for photos, particularly if you're getting married in the fall or winter when the sun sets early.
When you're timing the shoot, keep in mind that most wedding photo sessions usually take 90 minutes, divided among the time it takes to get pictures of the couple, wedding party, and family.
If you're taking photos before the day's events, end the session no later than 30 minutes before the ceremony starts.
If you're looking to get the best light for additional photos, remember to block off 15 to 20 minutes during golden hour, or the hour or so before the sun sets when the sun is softer, redder, and makes us all look like supermodels.